Designed for gym workouts like HIIT and strength training, the Wmns Free TR Flyknit 'Hyper Violet' training shoe provides stability, breathability and support. Equipped with a one-piece Flyknit upper, this women's sneaker promotes strategic support combined with ventilation zones. Flywire cables integrate with the laces for dynamic support. The Nike Free sole below, inspired by the barefoot training practice of Stanford athletes, flexes through every step.